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Hi Craig
In my previous DOB (now sold) I used a ball bearing of about 40mm diameter that I had in the junk box. I laid it on its side and arranged for the centre ring to be attached to the DOB base and the outer ring attached to
the rotating section. It was then a matter of spacing up the outer teflon pads to optimise friction vs wobble. The friction from the rotating ball bearing which took the bulk of the weight was near to zero.
Cheers Peter
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